Long alumina fibers with 60 cm in length were prepared by sol-gel method. The spinning sol was obtained by mixing aluminum nitrate, oxalic acid, and polyvinylpy
Effects of magnesia fines addition ( 4% ,6% and 8% in mass) and spinel with different compositions ( alumina-rich,magnesia-rich and stoichiometric spinel) on th
The research development on new dry vibrating re- fractories,magnesia based slag dam and bubble curtain barricade for continuous casting tundish was introduced.